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fimpt, I8, 1956 J. E. GSTLINE TELEPHONE SYSTEMS 6], Sheeta-Sheet 1 Original Filed Feb. 23, 1946 INVENTOR. JOHN E. OSTLINE mm 5 mm mm qm S R mm mm mm mm mm mm 5 23m mm mm 5 8 Q 9 a E. @Q 3 Q 2% E 9 mm Q m. E Q 3. a SQ??? Q m m N w mm it. mm Nm m w m 5556 v $23106 zwazfi 38 N $55G a n 32455 K M23 m mwz zuxw N M6556 M2236 mm M28 mm wzoN ATTYS.

J. E. OSTLINE TELEPHONE SYSTEMS EXCHANGE 3 ZONE 27 6.1, Sheets-Sheet 3 r SEL. SEL. CONN. HG,

5505 5505 550? E] I g] E 5550 E] E} 5:21 0

E 55L 55L CONN EXCHANGE 2 ZONE 2? 550\ 5502 5505 5504 B h IL N0EM EXCHANGE 5626 REPT. TOLL SEL SEL.

5608' 5509 55:0 56 7 1 25529:! g 5525 7 SEL. 5628: E 55m E5623 56l2 F. a

ZONE 62 5524 comm. SEL.- SEL- SIEL. 5515 551a 5517 5516 00mm. SEL. 563? 5636 g I I; -.-E

g g EXCHANGE 7 ZONE 85 5532 EXCHANGE 3 ZONE 55 Comm 35L 55L CONN. SEL SEL. 5515 56l4 5513 5522 562i 5520 E g g 2 [-3- INVENTOR- JOHN E. OSTLINE BY M M Ab c'szoa Posilo 61 Sheets-Sheet 5 TOLL OPER ATTYS.

Pos. ||2 05204 INVENTOR. JOHN E. OSTLlNE Original Filed Feb. 23, 1946 OUTGOING TRUNKS EXCHANGES [,587

IN ZONE 84 CONN. 52l

CONN. 522

CONN. 523

CONN 524 CONN 525 66 PARTY 33'" PARTY INDIVIDUAL P 0 R2 0 D00 000 o m T 5 T E Orv S L CF. 3 R E E 0 S SE 5 F 8 LE m e um T. 000000000 C C E R E PE L 5 S E S w Lu L Jil

Sept 18, 1956 Original Filed Feb. 23, 1946 61 Sheets-Sheet 7 PRIMARY SELECTOR 600 L 171 I"W O 772* A 73 774 722 STRAP ZGJSh (8) Sm BUSY TONE WHEN REG 720 70! ($508k LINE 6 $718 .3506

R730 HOLD R750 119 It], & 73: mo 0782 (a) R in mu 702 t fi V MTI4 I0! 0508 s71 77? c A A 5721 0 5 l 6 R770 i Yea/ g P 743 I; gems (8) STEP 776 703 Y'QWKT Z2 v 7 SWITCH g 53 VON R760 macz-mmsu S720 3H6? YOO N m M762 0783&

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c792 INVENTOR. (8)

JOHN E OSTLINE Sept 18, 1956 J. E. OSTLINE TELEPHONE SYSTEMS 61 Sheets-Sheet 8 Original Filed Feb. 23, 1946 TOLL TICKET REPEATER BOO NE omwu E mwmu f lm SZQSTWC M ALARM/ R840 HOLD 843 0m I i sgl' TES

w E 9 MU B P m 9 8 O C R 4 5 A a VMIV MN fl 4 8 B m Al? N 7 \I C 3 H 8 B 7 G .INVENTOR. JOHN E. OSTLINE ATTYS mm LY S E Q m E P w E T Original Filed Feb. I 23, 1946 61 Sheets-Sheet 9 E wwmo INVENTOR. JOHN E. OSTLINE ATTYS.

m 18, 1956 J. E. OSTLINE TELEPHONE SYSTEMS Original Filed Feb. 23, 1946 61 Sheets-Sheet 11 Register and Timer 8w.

5 I -H16 Z toruge Transer Sw jNVENTOR.

JOHN E. OSTILINE .I. E. OSTLJINE 2 7 725 TELEPHONE SYSTEMS Original Filed Feb. 25, 1946 61 Sheets-Sheet l2 & E 4

Cl253 I JOHN E. OSTLINE Sept, 18, 1956 J. E. OSTLLNE 2,763,725

TELEPHONE SYSTEMS Original Filed Feb. 25, 1946 61 Sheets-Sheet l6 PRIMARY REGISTER I200 FIRST CODE SECDND CODE THIRD CODE SW. A1500 SW. Bl5lO SW. Cl520 ec a N284 I503 r 15m 4 1525 M o 0 (H325 K o 11m mm W 7mm ATTYS.

. E. OSTLIINE 51:11;

TELEPHONE SYSTEMS Original Filed Feb. 23, 1946 6]. Sheets-Sheet .19

2 8i 3 DIGIT CODE gzm (27) RITEQ FR 1730 RITZO' U i FREE FREE CALL R OUTING f s 239m Eza m m INVENTOR. JOHN E.

OSTLINE Sept, 18, 1956 J. E. OS-TLINE JEJ'ZS TELEPHONE SYSTEMS Original Filed Feb. 25, 1946 e; sheets sheetzo I ammo C277l 1842 INVENTOR. AJOHN E. OSTLINIE 

